Ball valve capable of adjusting mounting direction of driving device on line

Abstract

The utility model relates to a ball valve capable of adjusting the installation direction of a driving device on line, which comprises a valve body and a connecting body, a worm gear and a worm are arranged at the top end of the valve body, a first connecting end is arranged at one end of the valve body, and a second connecting end is arranged at the other end of the valve body. A third connecting end and a fourth connecting end are arranged at one end of the connecting body, a valve rod penetrates through the valve body, the bottom end of the valve rod is connected with a ball in an abutting mode, the top end of the valve rod is connected with the worm gear in a clamping mode, the worm gear is meshed with the worm, and a limiting bolt is arranged on the side, located in the length direction of the valve body, of the worm gear. A pointer is arranged at the top end of the worm, and one end of the worm is fixedly connected with a hand wheel. The ball valve capable of adjusting the installation direction of the driving device on line has the advantages of improving replacement efficiency, reducing cost, achieving on-line adjustment and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a ball valve capable of adjusting the installation direction of a driving device online. Background Art

[0002] At present, conventional ball valves only need to be adapted to the drive device, and the top of the valve stem only needs to cooperate with the drive device. Generally, a keyway connection is used to ensure sufficient strength. However, the on-site operation conditions cannot guarantee whether the personnel are operating in front of or behind the valve and the connection is damaged. If the drive device or valve stem is replaced, it will be time-consuming and costly, wasting a lot of manpower and financial resources.

[0003] To this end, we have developed a ball valve that can adjust the installation direction of the drive device online to solve the above problems. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and to provide a ball valve with an online adjustment of the installation direction of a driving device, which has the advantages of improving replacement efficiency, reducing costs, and online adjustment.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a ball valve with an online adjustment of the installation direction of a driving device, comprising a valve body, a connecting body, a worm gear, a worm and a valve stem, wherein a first connecting end is provided at one end of the valve body, and a second connecting end is provided at the other end, and a third connecting end and a fourth connecting end are provided at one end of the connecting body;

[0006] The valve body is penetrated by the valve stem, the bottom end of the valve stem abuts against a sphere, and the top end is clamped with the worm gear, and the worm gear is meshed with the worm;

[0007] The worm wheel is provided with a limit bolt at one side of the valve body in the length direction, and an indicator needle is provided at the top, and one end of the worm is fixedly connected to a hand wheel;

[0008] The first connection end is provided with first connection holes evenly distributed around the circumference, and the third connection end is provided with second connection holes evenly distributed around the circumference. The first connection hole and the second connection hole are fixedly connected by bolts and first nuts.

[0009] Preferably, the valve stem is provided with a first step, a second step and a third step in sequence from top to bottom, a first chamfer is provided at the top of the first step, and a plurality of keyways are provided at the middle position.

[0010] Preferably, the number of the key slots is 2, and the included angle between the two key slots is 180°.

[0011] Preferably, an L-shaped surface is symmetrically provided at the bottom end of the third step, and the bottom end of the L-shaped surface abuts against the sphere.

[0012] Preferably, the L-shaped surface and the keyway are arranged on the same side of the valve stem.

[0013] Preferably, a plurality of grooves are provided on the inner wall of the worm wheel, and a connecting key is crimped between the groove and the keyway.

[0014] Preferably, the worm is provided with a worm shaft, one end of the worm shaft is provided with a thread, and the handwheel is provided with a connecting column, the connecting column is plugged into the worm shaft and is locked by a second nut and the thread.

[0015] Preferably, the worm shaft is provided with a first square surface near the thread, and the inner wall of the connecting column is provided with a second square surface, and the first square surface is plugged into the second square surface.

[0016] Preferably, the second connecting end is provided with a first connecting port, and the first connecting port is provided with a first positioning boss.

[0017] Preferably, the fourth connecting end is provided with a second connecting port, and the second connecting port is provided with a second positioning boss.

[0018] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0019] The utility model discloses a ball valve with online adjustment of the installation direction of the driving device, which reduces the replacement time of the valve driving device and reduces the cost by quickly replacing the top end of the valve stem. The driving device can be replaced on one side or the other side of the valve body, so that the installation direction of the driving device can be adjusted online. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the ball valve for adjusting the installation direction of the driving device online according to the utility model.

[0021] Figure 2 It is a structural schematic diagram of the valve stem of the utility model. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Figure 1 and Figure 2In the invention, a ball valve for adjusting the installation direction of a driving device online comprises a valve body 50, a connecting body 60, a worm wheel 20, a worm 30 and a valve stem 10. A first connecting end 51 is provided at one end of the valve body 50, and a second connecting end 52 is provided at the other end. A third connecting end 61 and a fourth connecting end 62 are provided at one end of the connecting body 60. The valve body 50 is penetrated by the valve stem 10. The bottom end of the valve stem 10 abuts against a ball, and the top end is clamped with the worm wheel 20. The worm wheel 20 is meshed with the worm 30. A limiting bolt 22 is provided at one side of the worm wheel 20 in the length direction of the valve body 50, and an indicating needle 23 is provided at the top end. One end of the worm 30 is fixedly connected to a hand wheel 40. When the hand wheel 40 is turned, the indicating needle 23 indicates the open or closed position of the ball valve.

[0024] The first connection end 51 is provided with first connection holes 511 evenly distributed around the circumference, and the third connection end 61 is provided with second connection holes 611 evenly distributed around the circumference. The first connection holes 511 and the second connection holes 611 are fixedly connected by bolts 70 and first nuts 71. The second connection end 52 is provided with a first connection port 521, and the first connection port 521 is provided with a first positioning boss 522. The fourth connection end 62 is provided with a second connection port 621, and the second connection port 621 is provided with a second positioning boss 622. The positioning boss facilitates the fixed connection between the ball valve and the external pipe fitting.

[0025] The valve stem 10 is provided with a first step 11, a second step 12 and a third step 13 from top to bottom, a first chamfer 112 is provided at the top of the first step 11, and a plurality of keyways 111 are provided at the middle position. A second chamfer 121 is provided at the top of the second step 12, and the second step 12 abuts against the sliding bearing.

[0026] There are two key slots 111, and the included angle between the two key slots 111 is 180°. When a driving device such as a worm gear is replaced, it can be fixedly connected to any key slot 111, so that the installation direction of the driving device can be adjusted online.

[0027] The bottom end of the third step 13 is symmetrically provided with an L-shaped surface 131, and the bottom end of the L-shaped surface 131 abuts against the sphere. The L-shaped surface 131 and the key groove 111 are arranged on the same side of the valve stem 10, thereby improving the strength of the valve stem during rotation.

[0028] The inner wall of the worm wheel 20 is provided with a plurality of grooves 21, and there are two grooves 21. A connecting key 15 is pressed between the groove 21 and the keyway 111. The connecting key 15 is a flat key or a semicircular key. The worm wheel 20 is fixedly connected to the top of the valve body 50 by screws.

[0029] The worm 30 is provided with a worm shaft 31, a thread 312 is provided at one end of the worm shaft 31, a first square surface 311 is provided near the thread 312 of the worm shaft 31, and the handwheel 40 is provided with a connecting column 41, a second square surface 42 is provided at the inner wall of the connecting column 41, and the connecting column 41 is plugged with the worm shaft 31 and locked by the second nut 32 and the thread 312. The first square surface 311 is plugged with the second square surface 42 to improve the assembly efficiency of the handwheel.

[0030] The first connection port 521 is positioned and connected with the external pipeline through the first positioning boss 522, and the second connection port 621 is abutted and positioned and fixedly connected with the external pipeline through the second positioning boss 622. When the drive device needs to be replaced, turn the hand wheel 40, the indicator needle 23 points to the closed position, remove the fixing screws of the worm gear 20 and the valve body 50, remove the connecting key 15, and then loosen the worm gear 20. The two 180° key slots 111 of the valve stem 10 can be arbitrarily equipped with the worm gear 20, so that the valve stem can be adjusted online. The structural design is reasonable, the valve can adjust the installation direction online, and the hand wheel 40 can be installed on one side or the other side of the valve body, which improves the replacement efficiency of the drive and reduces the manpower and time costs.

[0031] The above are only specific application examples of the utility model, and do not constitute any limitation on the protection scope of the utility model. Any technical solution formed by equivalent transformation or equivalent replacement falls within the protection scope of the utility model.

Claims

1. A ball valve for adjusting the installation direction of a driving device online, characterized in that: The valve body (50) comprises a valve body (50), a connecting body (60), a worm wheel (20), a worm (30) and a valve stem (10); one end of the valve body (50) is provided with a first connecting end (51), and the other end is provided with a second connecting end (52); one end of the connecting body (60) is provided with a third connecting end (61) and a fourth connecting end (62); The valve body (50) is penetrated by the valve stem (10), the bottom end of the valve stem (10) abuts against a sphere, and the top end is clamped with the worm wheel (20), and the worm wheel (20) is meshed with the worm (30); The worm wheel (20) is provided with a limit bolt (22) at one side in the length direction of the valve body (50), and an indicator needle (23) is provided at the top end; one end of the worm (30) is fixedly connected to a hand wheel (40); The first connection end (51) is provided with first connection holes (511) evenly distributed around the circumference, and the third connection end (61) is provided with second connection holes (611) evenly distributed around the circumference, and the first connection holes (511) and the second connection holes (611) are fixedly connected by bolts (70) and first nuts (71).

2. The ball valve with online adjustment of the installation direction of the driving device according to claim 1 is characterized in that: The valve stem (10) is provided with a first step (11), a second step (12) and a third step (13) in sequence from top to bottom; a first chamfer (112) is provided at the top end of the first step (11), and a plurality of keyways (111) are provided at the middle position.

3. The ball valve with online adjustment of the installation direction of the driving device according to claim 2 is characterized in that: The number of the key slots (111) is 2, and the included angle between the two key slots (111) is 180°.

4. The ball valve with online adjustment of the installation direction of the driving device according to claim 2 is characterized in that: An L-shaped surface (131) is symmetrically provided at the bottom end of the third step (13), and the bottom end of the L-shaped surface (131) abuts against the sphere.

5. The ball valve with online adjustment of the installation direction of the driving device according to claim 4 is characterized in that: The L-shaped surface (131) and the key groove (111) are arranged on the same side of the valve stem (10).

6. The ball valve with online adjustment of the installation direction of the driving device according to claim 2, characterized in that: A plurality of grooves (21) are provided on the inner wall of the worm wheel (20), and a connecting key (15) is pressed between the groove (21) and the keyway (111).

7. The ball valve with online adjustment of the installation direction of the driving device according to claim 1, characterized in that: The worm (30) is provided with a worm shaft (31), one end of which is provided with a thread (312), and the hand wheel (40) is provided with a connecting column (41), the connecting column (41) is plugged into the worm shaft (31) and is locked by a second nut (32) and the thread (312).

8. The ball valve with online adjustment of the installation direction of the driving device according to claim 7, characterized in that: The worm shaft (31) is provided with a first square surface (311) near the thread (312), and the inner wall of the connecting column (41) is provided with a second square surface (42), and the first square surface (311) is plugged into the second square surface (42).

9. The ball valve with online adjustment of the installation direction of the driving device according to claim 1, characterized in that: The second connecting end (52) is provided with a first connecting port (521), and the first connecting port (521) is provided with a first positioning boss (522).

10. The ball valve with online adjustment of the installation direction of the driving device according to claim 9, characterized in that: The fourth connection end (62) is provided with a second connection port (621), and the second connection port (621) is provided with a second positioning boss (622).

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